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<div class="header">
  <div class="headertitle"><div class="title">convert_char_to_num.sas</div></div>
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<div class="contents">
<div class="fragment"><div class="line"><a id="l00001" name="l00001"></a><span class="lineno">    1</span>%macro convert_char_to_num(ds=, outds=, varlist=);</div>
<div class="line"><a id="l00002" name="l00002"></a><span class="lineno">    2</span> </div>
<div class="line"><a id="l00003" name="l00003"></a><span class="lineno">    3</span>  %local _varlist _variable _outds _random _words _i;</div>
<div class="line"><a id="l00004" name="l00004"></a><span class="lineno">    4</span>  </div>
<div class="line"><a id="l00005" name="l00005"></a><span class="lineno">    5</span>  %<span class="keywordflow">if</span> not %sysfunc(exist(&amp;ds)) %then %<span class="keywordflow">do</span>;</div>
<div class="line"><a id="l00006" name="l00006"></a><span class="lineno">    6</span>    %put ER%str(ROR): [&amp;sysmacroname] Dataset &amp;ds does not exist.;</div>
<div class="line"><a id="l00007" name="l00007"></a><span class="lineno">    7</span>    %<span class="keywordflow">goto</span> exit_macro;</div>
<div class="line"><a id="l00008" name="l00008"></a><span class="lineno">    8</span>  %end;   </div>
<div class="line"><a id="l00009" name="l00009"></a><span class="lineno">    9</span> </div>
<div class="line"><a id="l00010" name="l00010"></a><span class="lineno">   10</span>  %let _random=%sysfunc(putn(%sysevalf(%sysfunc(ranuni(0))*10000,floor),z4.));</div>
<div class="line"><a id="l00011" name="l00011"></a><span class="lineno">   11</span>  %let _words = %sysfunc(countw(&amp;varlist, %str(<span class="charliteral">&#39; &#39;</span>)));</div>
<div class="line"><a id="l00012" name="l00012"></a><span class="lineno">   12</span>  %let _outds = &amp;outds;</div>
<div class="line"><a id="l00013" name="l00013"></a><span class="lineno">   13</span>  %<span class="keywordflow">if</span> %sysevalf(%superq(outds)=, <span class="keywordtype">boolean</span>) %then %let _outds = &amp;ds;</div>
<div class="line"><a id="l00014" name="l00014"></a><span class="lineno">   14</span> </div>
<div class="line"><a id="l00015" name="l00015"></a><span class="lineno">   15</span>  %let _varlist=;</div>
<div class="line"><a id="l00016" name="l00016"></a><span class="lineno">   16</span>  %<span class="keywordflow">do</span> _i = 1 %to &amp;_words;</div>
<div class="line"><a id="l00017" name="l00017"></a><span class="lineno">   17</span>    %let _variable = %scan(&amp;varlist, &amp;_i);</div>
<div class="line"><a id="l00018" name="l00018"></a><span class="lineno">   18</span>    %<span class="keywordflow">if</span> %cstutilcheckvarsexist(_cstDataSetName=&amp;ds, _cstVarList=&amp;_variable)=0</div>
<div class="line"><a id="l00019" name="l00019"></a><span class="lineno">   19</span>      %then %put WAR%str(NING): [&amp;sysmacroname] Variable &amp;_variable does not exist in dataset &amp;ds..;</div>
<div class="line"><a id="l00020" name="l00020"></a><span class="lineno">   20</span>      %<span class="keywordflow">else</span> %<span class="keywordflow">do</span>;</div>
<div class="line"><a id="l00021" name="l00021"></a><span class="lineno">   21</span>        %<span class="keywordflow">if</span> %cstutilgetattribute(_cstDataSetName=&amp;ds, _cstVarName=&amp;_variable, _cstAttribute=VARTYPE) eq C</div>
<div class="line"><a id="l00022" name="l00022"></a><span class="lineno">   22</span>          %then %let _varlist = &amp;_varlist &amp;_variable;</div>
<div class="line"><a id="l00023" name="l00023"></a><span class="lineno">   23</span>          %<span class="keywordflow">else</span> %put WAR%str(NING): [&amp;sysmacroname] &amp;_variable is not a character variable;</div>
<div class="line"><a id="l00024" name="l00024"></a><span class="lineno">   24</span>      %end;  </div>
<div class="line"><a id="l00025" name="l00025"></a><span class="lineno">   25</span>  %end;  </div>
<div class="line"><a id="l00026" name="l00026"></a><span class="lineno">   26</span>  %let _words = %sysfunc(countw(&amp;_varlist, %str(<span class="charliteral">&#39; &#39;</span>)));</div>
<div class="line"><a id="l00027" name="l00027"></a><span class="lineno">   27</span> </div>
<div class="line"><a id="l00028" name="l00028"></a><span class="lineno">   28</span>  proc contents data=&amp;ds noprint out=work._contents_&amp;_random(keep=libname memname name varnum);</div>
<div class="line"><a id="l00029" name="l00029"></a><span class="lineno">   29</span>  run;</div>
<div class="line"><a id="l00030" name="l00030"></a><span class="lineno">   30</span> </div>
<div class="line"><a id="l00031" name="l00031"></a><span class="lineno">   31</span>  proc sql noprint;</div>
<div class="line"><a id="l00032" name="l00032"></a><span class="lineno">   32</span>    select name into :_variables separated by <span class="charliteral">&#39; &#39;</span></div>
<div class="line"><a id="l00033" name="l00033"></a><span class="lineno">   33</span>      from work._contents_&amp;_random</div>
<div class="line"><a id="l00034" name="l00034"></a><span class="lineno">   34</span>    order by varnum;</div>
<div class="line"><a id="l00035" name="l00035"></a><span class="lineno">   35</span>  quit;</div>
<div class="line"><a id="l00036" name="l00036"></a><span class="lineno">   36</span>  </div>
<div class="line"><a id="l00037" name="l00037"></a><span class="lineno">   37</span>  %put &amp;=_variables;</div>
<div class="line"><a id="l00038" name="l00038"></a><span class="lineno">   38</span>  </div>
<div class="line"><a id="l00039" name="l00039"></a><span class="lineno">   39</span>  </div>
<div class="line"><a id="l00040" name="l00040"></a><span class="lineno">   40</span>  %<span class="keywordflow">if</span> %sysevalf(%superq(_varlist)=, <span class="keywordtype">boolean</span>) %then %<span class="keywordflow">do</span>;</div>
<div class="line"><a id="l00041" name="l00041"></a><span class="lineno">   41</span>    %<span class="keywordflow">if</span> %sysevalf(%superq(_outds)=, <span class="keywordtype">boolean</span>)=0 %then %<span class="keywordflow">do</span>;</div>
<div class="line"><a id="l00042" name="l00042"></a><span class="lineno">   42</span>      data &amp;outds;</div>
<div class="line"><a id="l00043" name="l00043"></a><span class="lineno">   43</span>        <span class="keyword">set</span> &amp;ds;</div>
<div class="line"><a id="l00044" name="l00044"></a><span class="lineno">   44</span>      run;   </div>
<div class="line"><a id="l00045" name="l00045"></a><span class="lineno">   45</span>    %end;</div>
<div class="line"><a id="l00046" name="l00046"></a><span class="lineno">   46</span>  %end;</div>
<div class="line"><a id="l00047" name="l00047"></a><span class="lineno">   47</span>  %<span class="keywordflow">else</span> %<span class="keywordflow">do</span>;</div>
<div class="line"><a id="l00048" name="l00048"></a><span class="lineno">   48</span>    data &amp;outds;</div>
<div class="line"><a id="l00049" name="l00049"></a><span class="lineno">   49</span>      retain &amp;_variables;</div>
<div class="line"><a id="l00050" name="l00050"></a><span class="lineno">   50</span>      length &amp;_varlist 8;</div>
<div class="line"><a id="l00051" name="l00051"></a><span class="lineno">   51</span>    <span class="keyword">set</span> &amp;ds(rename=(%<span class="keywordflow">do</span> _i = 1 %to &amp;_words;%scan(&amp;_varlist, &amp;_i)=_%scan(&amp;_varlist, &amp;_i) %str ( )%end;));</div>
<div class="line"><a id="l00052" name="l00052"></a><span class="lineno">   52</span>      %<span class="keywordflow">do</span> _i = 1 %to &amp;_words;</div>
<div class="line"><a id="l00053" name="l00053"></a><span class="lineno">   53</span>        %let _variable = %scan(&amp;_varlist, &amp;_i);</div>
<div class="line"><a id="l00054" name="l00054"></a><span class="lineno">   54</span>        &amp;_variable = input(_&amp;_variable, ?? best32.);</div>
<div class="line"><a id="l00055" name="l00055"></a><span class="lineno">   55</span>        <span class="keywordflow">if</span> missing(&amp;_variable) and not(missing(_&amp;_variable))</div>
<div class="line"><a id="l00056" name="l00056"></a><span class="lineno">   56</span>          then putlog <span class="stringliteral">&#39;WAR&#39;</span> <span class="stringliteral">&#39;NING:&#39;</span> <span class="stringliteral">&quot; [&amp;sysmacroname] Conversion failed:&quot;</span> _n_= _&amp;_variable= &amp;_variable=;</div>
<div class="line"><a id="l00057" name="l00057"></a><span class="lineno">   57</span>        drop _&amp;_variable;</div>
<div class="line"><a id="l00058" name="l00058"></a><span class="lineno">   58</span>      %end;  </div>
<div class="line"><a id="l00059" name="l00059"></a><span class="lineno">   59</span>    run;</div>
<div class="line"><a id="l00060" name="l00060"></a><span class="lineno">   60</span>  %end;</div>
<div class="line"><a id="l00061" name="l00061"></a><span class="lineno">   61</span>    </div>
<div class="line"><a id="l00062" name="l00062"></a><span class="lineno">   62</span>  proc delete data=work._contents_&amp;_random;</div>
<div class="line"><a id="l00063" name="l00063"></a><span class="lineno">   63</span>  run;</div>
<div class="line"><a id="l00064" name="l00064"></a><span class="lineno">   64</span>  </div>
<div class="line"><a id="l00065" name="l00065"></a><span class="lineno">   65</span>  %exit_macro:</div>
<div class="line"><a id="l00066" name="l00066"></a><span class="lineno">   66</span> </div>
<div class="line"><a id="l00067" name="l00067"></a><span class="lineno">   67</span>%mend convert_char_to_num;</div>
<div class="line"><a id="l00068" name="l00068"></a><span class="lineno">   68</span> </div>
<div class="line"><a id="l00069" name="l00069"></a><span class="lineno">   69</span> </div>
<div class="line"><a id="l00070" name="l00070"></a><span class="lineno">   70</span> </div>
<div class="line"><a id="l00071" name="l00071"></a><span class="lineno">   71</span><span class="comment">/*</span></div>
<div class="line"><a id="l00072" name="l00072"></a><span class="lineno">   72</span><span class="comment">options mprint;</span></div>
<div class="line"><a id="l00073" name="l00073"></a><span class="lineno">   73</span><span class="comment">%include &quot;convert_num_to_char.sas&quot;;</span></div>
<div class="line"><a id="l00074" name="l00074"></a><span class="lineno">   74</span><span class="comment">%let _Random=%sysfunc(putn(%sysevalf(%sysfunc(ranuni(0))*10000,floor),z4.));</span></div>
<div class="line"><a id="l00075" name="l00075"></a><span class="lineno">   75</span><span class="comment"></span> </div>
<div class="line"><a id="l00076" name="l00076"></a><span class="lineno">   76</span><span class="comment">filename map&amp;_random temp;</span></div>
<div class="line"><a id="l00077" name="l00077"></a><span class="lineno">   77</span><span class="comment">filename js1 temp;</span></div>
<div class="line"><a id="l00078" name="l00078"></a><span class="lineno">   78</span><span class="comment">filename js2 temp;</span></div>
<div class="line"><a id="l00079" name="l00079"></a><span class="lineno">   79</span><span class="comment"></span> </div>
<div class="line"><a id="l00080" name="l00080"></a><span class="lineno">   80</span><span class="comment">proc contents data=sashelp.class varnum;</span></div>
<div class="line"><a id="l00081" name="l00081"></a><span class="lineno">   81</span><span class="comment">run;</span></div>
<div class="line"><a id="l00082" name="l00082"></a><span class="lineno">   82</span><span class="comment">proc print data=sashelp.class;</span></div>
<div class="line"><a id="l00083" name="l00083"></a><span class="lineno">   83</span><span class="comment">run;  </span></div>
<div class="line"><a id="l00084" name="l00084"></a><span class="lineno">   84</span><span class="comment"></span> </div>
<div class="line"><a id="l00085" name="l00085"></a><span class="lineno">   85</span><span class="comment">data work.class;</span></div>
<div class="line"><a id="l00086" name="l00086"></a><span class="lineno">   86</span><span class="comment">  set sashelp.class;</span></div>
<div class="line"><a id="l00087" name="l00087"></a><span class="lineno">   87</span><span class="comment">  if _n_ = 2 then name=&quot;&quot;;</span></div>
<div class="line"><a id="l00088" name="l00088"></a><span class="lineno">   88</span><span class="comment">  if _n_ &gt; 10 then height = height * (1 + rand(&#39;uniform&#39;));</span></div>
<div class="line"><a id="l00089" name="l00089"></a><span class="lineno">   89</span><span class="comment">  if _n_ = 3 then height=.;</span></div>
<div class="line"><a id="l00090" name="l00090"></a><span class="lineno">   90</span><span class="comment">run;</span></div>
<div class="line"><a id="l00091" name="l00091"></a><span class="lineno">   91</span><span class="comment"></span> </div>
<div class="line"><a id="l00092" name="l00092"></a><span class="lineno">   92</span><span class="comment">%* exchange height as a number;</span></div>
<div class="line"><a id="l00093" name="l00093"></a><span class="lineno">   93</span><span class="comment">proc json out=js1 pretty;</span></div>
<div class="line"><a id="l00094" name="l00094"></a><span class="lineno">   94</span><span class="comment">  export work.class;</span></div>
<div class="line"><a id="l00095" name="l00095"></a><span class="lineno">   95</span><span class="comment">run;</span></div>
<div class="line"><a id="l00096" name="l00096"></a><span class="lineno">   96</span><span class="comment"></span> </div>
<div class="line"><a id="l00097" name="l00097"></a><span class="lineno">   97</span><span class="comment">data _null_;</span></div>
<div class="line"><a id="l00098" name="l00098"></a><span class="lineno">   98</span><span class="comment">infile js1;</span></div>
<div class="line"><a id="l00099" name="l00099"></a><span class="lineno">   99</span><span class="comment">input;</span></div>
<div class="line"><a id="l00100" name="l00100"></a><span class="lineno">  100</span><span class="comment">put _infile_;</span></div>
<div class="line"><a id="l00101" name="l00101"></a><span class="lineno">  101</span><span class="comment">run;</span></div>
<div class="line"><a id="l00102" name="l00102"></a><span class="lineno">  102</span><span class="comment"></span> </div>
<div class="line"><a id="l00103" name="l00103"></a><span class="lineno">  103</span><span class="comment">libname json&amp;_random json map=map&amp;_Random automap=create fileref=js1 noalldata ordinalcount=none;</span></div>
<div class="line"><a id="l00104" name="l00104"></a><span class="lineno">  104</span><span class="comment"></span> </div>
<div class="line"><a id="l00105" name="l00105"></a><span class="lineno">  105</span><span class="comment">proc compare base=work.class compare=json&amp;_Random..sastabledata_class;</span></div>
<div class="line"><a id="l00106" name="l00106"></a><span class="lineno">  106</span><span class="comment">title &quot;Transferred in JSON as numeric&quot;;</span></div>
<div class="line"><a id="l00107" name="l00107"></a><span class="lineno">  107</span><span class="comment">run;  </span></div>
<div class="line"><a id="l00108" name="l00108"></a><span class="lineno">  108</span><span class="comment"></span> </div>
<div class="line"><a id="l00109" name="l00109"></a><span class="lineno">  109</span><span class="comment">%convert_num_to_char(ds=work.class, outds=work.class1, varlist=weight height);</span></div>
<div class="line"><a id="l00110" name="l00110"></a><span class="lineno">  110</span><span class="comment"></span> </div>
<div class="line"><a id="l00111" name="l00111"></a><span class="lineno">  111</span><span class="comment">proc contents data=work.class1 varnum;</span></div>
<div class="line"><a id="l00112" name="l00112"></a><span class="lineno">  112</span><span class="comment">run;</span></div>
<div class="line"><a id="l00113" name="l00113"></a><span class="lineno">  113</span><span class="comment">proc print data=work.class1;</span></div>
<div class="line"><a id="l00114" name="l00114"></a><span class="lineno">  114</span><span class="comment">run;  </span></div>
<div class="line"><a id="l00115" name="l00115"></a><span class="lineno">  115</span><span class="comment"></span> </div>
<div class="line"><a id="l00116" name="l00116"></a><span class="lineno">  116</span><span class="comment">%* exchange height as a character;</span></div>
<div class="line"><a id="l00117" name="l00117"></a><span class="lineno">  117</span><span class="comment">proc json out=js2 pretty;</span></div>
<div class="line"><a id="l00118" name="l00118"></a><span class="lineno">  118</span><span class="comment">  export work.class1;</span></div>
<div class="line"><a id="l00119" name="l00119"></a><span class="lineno">  119</span><span class="comment">run;</span></div>
<div class="line"><a id="l00120" name="l00120"></a><span class="lineno">  120</span><span class="comment"></span> </div>
<div class="line"><a id="l00121" name="l00121"></a><span class="lineno">  121</span><span class="comment">data _null_;</span></div>
<div class="line"><a id="l00122" name="l00122"></a><span class="lineno">  122</span><span class="comment">infile js2;</span></div>
<div class="line"><a id="l00123" name="l00123"></a><span class="lineno">  123</span><span class="comment">input;</span></div>
<div class="line"><a id="l00124" name="l00124"></a><span class="lineno">  124</span><span class="comment">put _infile_;</span></div>
<div class="line"><a id="l00125" name="l00125"></a><span class="lineno">  125</span><span class="comment">run;</span></div>
<div class="line"><a id="l00126" name="l00126"></a><span class="lineno">  126</span><span class="comment"></span> </div>
<div class="line"><a id="l00127" name="l00127"></a><span class="lineno">  127</span><span class="comment">libname json&amp;_random clear;</span></div>
<div class="line"><a id="l00128" name="l00128"></a><span class="lineno">  128</span><span class="comment">libname json&amp;_random json map=map&amp;_Random automap=create fileref=js2 noalldata ordinalcount=none;</span></div>
<div class="line"><a id="l00129" name="l00129"></a><span class="lineno">  129</span><span class="comment"> </span></div>
<div class="line"><a id="l00130" name="l00130"></a><span class="lineno">  130</span><span class="comment">%convert_char_to_num(ds=json&amp;_Random..sastabledata_class1, outds=class_char, varlist=weight height);</span></div>
<div class="line"><a id="l00131" name="l00131"></a><span class="lineno">  131</span><span class="comment"></span> </div>
<div class="line"><a id="l00132" name="l00132"></a><span class="lineno">  132</span><span class="comment">proc compare base=work.class compare=work.class_char;</span></div>
<div class="line"><a id="l00133" name="l00133"></a><span class="lineno">  133</span><span class="comment">title &quot;Transferred in JSON as character&quot;;</span></div>
<div class="line"><a id="l00134" name="l00134"></a><span class="lineno">  134</span><span class="comment">run;  </span></div>
<div class="line"><a id="l00135" name="l00135"></a><span class="lineno">  135</span><span class="comment"></span> </div>
<div class="line"><a id="l00136" name="l00136"></a><span class="lineno">  136</span><span class="comment"></span> </div>
<div class="line"><a id="l00137" name="l00137"></a><span class="lineno">  137</span><span class="comment">%convert_char_to_num(ds=work.classzzz, outds=work.class2, varlist=height weight);</span></div>
<div class="line"><a id="l00138" name="l00138"></a><span class="lineno">  138</span><span class="comment">%convert_char_to_num(ds=work.class1, outds=work.class2, varlist=height weight);</span></div>
<div class="line"><a id="l00139" name="l00139"></a><span class="lineno">  139</span><span class="comment">proc contents data=work.class2 varnum;</span></div>
<div class="line"><a id="l00140" name="l00140"></a><span class="lineno">  140</span><span class="comment">run;</span></div>
<div class="line"><a id="l00141" name="l00141"></a><span class="lineno">  141</span><span class="comment">proc print data=work.class2;</span></div>
<div class="line"><a id="l00142" name="l00142"></a><span class="lineno">  142</span><span class="comment">  format height weight best.;</span></div>
<div class="line"><a id="l00143" name="l00143"></a><span class="lineno">  143</span><span class="comment">run;</span></div>
<div class="line"><a id="l00144" name="l00144"></a><span class="lineno">  144</span><span class="comment"></span> </div>
<div class="line"><a id="l00145" name="l00145"></a><span class="lineno">  145</span><span class="comment">proc compare base=work.class compare=work.class2;</span></div>
<div class="line"><a id="l00146" name="l00146"></a><span class="lineno">  146</span><span class="comment">  title &quot;Transferred back to numeric&quot;;</span></div>
<div class="line"><a id="l00147" name="l00147"></a><span class="lineno">  147</span><span class="comment">run;    </span></div>
<div class="line"><a id="l00148" name="l00148"></a><span class="lineno">  148</span><span class="comment">*/</span></div>
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